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1 Technical Data Emer-Seal Roadseal Sheet High performance, low modulus, high Properties joint movement accommodation, one Data quoted are typical for these products, but do not component silicone rubber joint sealant constitute a specification. Uses Form: Non slump, thixotropic paste Sealing joints in: Colour: Concrete Grey Concrete roads & pavements Physical or chemical Chemical cure, moisture Bridge decks and car parks Change: activated Aircraft runways and aprons Hardness (Shore A): 17 +/- 5. Application temperature: Minimum 5 C. Advantages Service temperature: Minus 50 C - 150 C. Ready to use Tooling time @ 23 C : 20 minutes Easy contractor application Tack free time @ 23 C: 45 - 60 minutes No mixing required Movement accommodation Plus 100% - minus 50%.

2 Factor: Fast rate of cure Elongation ASTM D412 : 1000%. Excellent adhesion to clean dry concrete Chemical resistance to Resistant to dilute acids Excellent weathering - UV and ozone resistant occasional spillage: and alkalis. Not resistant to organic solvents Dispensed from a bulk container by hand or air powered pump Design Criteria Large joint movement accommodation Roadseal is designed for use in saw cut and formed joints in concrete pavements. All moving joints should be designed with Standards Compliance an optimum width to depth ratio of 2:1 and an overriding minimum NSW RTA Bridge Decks QA Spec. B312 Ed 3/ Rev 0, 9/98 sealant depth of 7 mm.

3 In all joints either a polyethylene bond breaker tape or backing rod must be used to ensure that the Type GN - Accepted for use correct width to depth profile is achieved and to prevent the Type GT - Meets performance requirements (except sealant from adhering to the base of the joint. The sealant hardness) should be applied and tooled so that the sealant surface is 3. to 5 mm below the pavement surface. NSW RTA Rigid Pavements Spec Ed 2/Rev 3, 8/99. Accepted for use Application Instructions QLD Main Roads - Joint preparation Approved for use All concrete to which Roadseal is to be applied must be a QLD Main Roads - Concrete Pavements Spec MRS minimum of 14 days old.

4 All joint surfaces must be clean, dry 7/96 Table and free from any concrete slurry, oil, dirt or loose material, form release or curing compounds. Suitable for use Saw cut joints must be thoroughly cleaned of all concrete slurry by a high pressure water wash, followed by drying with high Description pressure compressed air. After air blasting the surface water Roadseal is a one-part, gun applied, silicone rubber joint sealant away, the joints must be allowed to dry normally for an additional designed to effectively seal joints in concrete roads, runways, 16 hours. Where atmospheric conditions are not conducive to carparks and pavements.

5 The low modulus characteristics of good drying low temperatures, high humidity or rain; Primer Roadseal allow it to accommodate cyclic joint movements of 10 or Primer 13 should be used. plus 100% and minus 50%. Roadseal is designed to be applied Where previously sealed joints are to be re-sealed, mechanically to joints between concrete pavements in order to prevent running remove all of the existing sealant prior to saw cutting the joint. water from undermining the pavement. Roadseal also serves Care should be taken not to melt residual asphaltic sealant and to prevent stones from being deposited in the joints which would spread it onto the joint faces with the hot saw blade.

6 Otherwise lock the joints and restrict the free thermal movement of adjacent pavement segments. Before application of the Roadseal remove any wind blown debris from the joints with a blast of dry, oil free, compressed air. Mar 2018 Page 1. Emer-Seal Roadseal An approved closed cell polyethylene backer rod or bond breaker Limitations tape must be installed into the joint before sealant application. Elastomeric sealants such as Roadseal should not be applied When placing the backer rod allow for a 5 mm set down of the in close proximity to bituminous materials as these may contain sealant from the pavement surface.

7 Components which can migrate into the sealant and result in staining, reduced performance or a loss of adhesion. Priming Priming is not normally required provided the joint faces are Joints in asphalt roads should only be sealed with Roadseal clean and free from any trace of laitance and surface SL, an ultra-low modulus version of Roadseal designed for contamination. sealing sawn joints in asphalt pavements and abutment joints between concrete and asphalt. Primer 10 is recommended on concrete and masonry surfaces to achieve the best possible adhesion. Where asphalt is to be applied over the concrete pavement containing the Roadseal, a non-adhesive bond breaker tape Primer 11 is recommended on metal surfaces to achieve the must be applied over the sealant surface to prevent direct best possible adhesion.

8 Contact with the asphalt and to prevent the asphalt bonding to A primer must be used if the sealant is to be submersed for the sealant surface. long periods, such as joints in a flood crossing or where fuel or chemical spillage may occur. Consult your local Parchem sales Estimating office for advice on priming. Primer 13 must be used in applications where Roadseal is to be subjected to permanent Supply water immersion. Roadseal: 600 ml sausage (FC910402-600ML). 20 litre drum (FC910402-20L). Application 200 litre drum (FC910402-200L). Roadseal is applied from 600 ml sausages or bulk containers Primer 10: 250ml tin into the joints using a suitable sealant gun.

9 On larger projects, FC965214-250ML. an air assisted gun and pump may be used allowing faster application. Within 10 minutes after application, the sealant Primer 11: 250ml tin must be tooled in order to improve contact with the joint faces, FC965216-250ML. and to lower the sealant surface to a level about 5 mm below Primer 13: 250ml pack (two-part epoxy). the pavement surface. Tooling is essential to force the sealant FC965221-250ML. to make good contact with the joint faces and achieve good Solvent 10: 4 and 20 litre drums adhesion. Equipment Coverage Complete high volume application units include an air powered Each 20 litre drum will seal approximately 200 metres of joint pump, follower plate, hose, gun, and applicator nozzle.

10 The with a 10 mm wide by 10 mm deep sealant bead. extrusion pumps are available with various output capacities. The hoses and connections must not allow moisture penetration. Storage Teflon lined hoses are recommended because of their low Storage life of 18 months in original containers when kept in moisture permeability. It should be noted that the rate of sealant cool, dry conditions. delivery is affected by air pressure, hose length, hose diameter and nozzle diameter. Clean up Equipment may be cleaned of uncured sealant by wiping, or soaking and wiping with Fosroc Solvent 10. Any sealant allowed to cure becomes very difficult to remove and can only be removed using Solvent 10 in combination with steel wool.